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vlada-n [284]
3 years ago
8

19-13p=-17p-5 check solution

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0
19-13p=-17p-5\ \ \ \ |add\ 13p\ to\ each \ side\\\\
19=-17p+13p-5\\\\
19=-4p-5\ \ \ \ |add\ 5\\\\
24=-4p\ \ \ \ |divide\ by\ -4\\\\p=-6\\\\Solution\ is\ p=-6.
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Use the ratio go solve the percent problem
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Answer
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3 years ago
My boss has told me that I will need one gallon of paint for every 300 square feet of wall I must paint. Unfortunately, the stor
lubasha [3.4K]

Answer: 14 cans

Step-by-step explanation:

Given, Total area to paint = 400 square meters

approximately 3.28 feet in a meter.

So, 400 square meters = 400 x (3.28)² square feet

i.e. Total area to paint  = 4303.36 square feet

One gallon of paint requires for every 300 square feet.

One liter contains approximately 0.264 gallons

Then, One gallon = \dfrac{1}{0.264}\approx3.78\text{ liters}

So, 3.78 liters paint requires for every 300 square feet.

Paint requires for each square feet = (3.78)÷(300) liters

Total paint required  = (Total area to paint ) x (Paint requires for each square feet)

= (4303.36)x (3.78)÷(300)

≈54.22 liters

Each can contains 4 liters of paint.

Smallest number of cans required = (Total paint required )÷ 4

=(54.22 ) ÷ 4

= 13.55≈ 14

Hence, 14 cans are required .

4 0
3 years ago
The ratio of girls to boys in Liza’s classroom is 5 to 4
nikitadnepr [17]
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LUCKY_DIMON [66]

Answer:

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Step-by-step explanation:

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pantera1 [17]

Answer:

It is 15% off

Step-by-step explanation:

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